Gaya APA

dkk, S, J, N. (2014). Vitamin D and Calcium: A Systematic Review of Health Outcomes (Update) . California: Agency for Healthcare Research and Quality.

Gaya MLA

dkk, Sydne, J., Newberry,. "Vitamin D and Calcium: A Systematic Review of Health Outcomes (Update)". California: Agency for Healthcare Research and Quality, 2014. Koleksi Elektronik.